Exploration Expenditures (Tables)

9 Months Ended

Sep. 30, 2018

Disclosure Of Exploration Expenditures [Abstract]

Summary of Company's Exploration Expenditures

The following tables summarize the Company’s exploration expenditures during the nine-month periods ended September 30, 2018 and 2017:

	For the nine months ended September 30, 2018
	Lithium Nevada $		General Exploration $		Total $
Drilling		701		-		701
Permitting and environmental		2,438		-		2,438
Engineering		78		-		78
Geological and consulting		3,755		-		3,755
Field supplies, other services, and taxes		220		47		267
Lithium demo plant equipment depreciation		84		-		84
Total exploration expenditures		7,276		47		7,323

	For the nine months ended September 30, 2017
	Lithium Nevada $		Cauchari-Olaroz¹ $				Total $
Drilling	609			-	609
Environmental		89	-		89
Engineering		14		-	14
Geological and consulting		1,152		428		1,580
Field supplies, other services, and taxes		204		43	247
Lithium demo plant equipment depreciation		84	-		84
Total exploration expenditures		2,152		471		2,623

¹Expenditures related to the Cauchari-Olaroz project incurred directly by the Company. Starting from July 1, 2017, construction costs related to the Cauchari-Olaroz project are capitalized into Investment in Joint Venture.